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If x^3+2x^2-ax-b is exactly divisible by...

If `x^3+2x^2-ax-b` is exactly divisible by `(x^2 -1)`, then the values of a and b are:

A

`a=-1andb=2`

B

`a=1andb=-2`

C

`a=1andb=2`

D

`a=2andb=2`

Text Solution

Verified by Experts

The correct Answer is:
C
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